Feed-water control for boilers.



0. Fox; FEED WATER CONTROL FOB BOILERS. APPHCATION FILED SEPT. I 7. 1915- 2 SHEETS-SHEET I.

0. FOX.

FEED WATER CONTROL FOR BOILERS.

APPLICATION FILED SEPT-l1. |9l5 I Patented Nov. 13, 1917.

2 SHEETS-SHEET 2- I I I 7 lllumm """IIII/ OTTO FOX, 0F LAKEWOOD, OHIO,

ASSIGNOR TO THE BRYANT HEATER & MANUFAC- TURING (10., OF CLEVELAND, OHIO, A'CORPORATION OF OHIO.

FEED-WATER CONTROL ]F'OIR/ BOILERS.

Specification of Letters Patent.

mated Nov. 13, 1917.

Application-filed September 17, 1915. 'Serial No. 51,137.

To all whom it may concem:

Be it known that I, OTTo' Fox, a citizen 7 of the UnitedStates, residing at 'l602' Woodthe county of ward avenue, Cuyahoga and a certain new Feed-Water Controls for Boilers, of which Lakewood, in

State of Ohio, have invented the following is a-full, clear, and exact description.

- This invention relates to feed water control for boilers and has for one of its objects to provide a construction such that the float controlled valve or valves may be easily adjusted from the exterior of the float chamber.

.A further object is to providea construction wherein the valve or valves and the mechanism for operating thesame may be removed asa unit from ,thefloat chamber by removinga detachable part of the chamber and without necessity for disconnecting any of the piping. a g

The invention may be briefly summarized as consisting in certain novel details of con: struction and combinations and arrange; ments of parts which will be described in the specification and set forth in the appended claims.

In the accompanying sheets of drawings, Figure 1 is anelevation of a boilerequipped with the invention; Fig. 2 is an end elevation of the .feed water controlling mechanism detached from the boiler; Fig. 3.is-a vertical sectional view of the same; Fig. 4: is a horizontal sectional view'substantially along the line 4:t of Fig. 3 looking in the direction indicated by the arrow; Fig. 5 is a detached side view oi' the overflow valve and some of the with the valve; and Fig. 6 is a top view of the same.

In the drawings, 10 represents a boiler which may be of any suitable construction and 11 represents the casing or chamber inclosing the parts which control the feed of Water to the boiler, which chamber or casing may for the sake of brevity be termed the float'chamber. The upper part of this chamber is connected by a pipe 12 to the upper part of the boiler or to a pipe leading thereto, and the lower part of the chem-- and useful Improvement in parts immediately associated ber 11 is connected by a pipe 13 to the lower I part. of thebboiler or to a pipe leading thereto, so that the waterlevel in the chamber 11 will always be the same asthe water level in the boiler 10. Thechamber 11 may be provided with a gage glass 14 and with try-cocks 15, but, these parts-are not essential to the invention.

The chamber 11 is substantially L-shaped, as viewed'fr'om the side, the said chamber having an upright portion and a lower horizontally. extending portion the end of which is closed by a plate or cap l6 secured by a series of bolts 17 to the flanged open end'of the lower part 16 carries all the operating parts which control the feed of water to the also the overflow from the boiler, as will be subsequently explained. In this instance I have provided in the chamber two floats and on the plate'l6 I have provided two valves,

' one of 'which controls. the admission of the valves being so operated that when the water level falls below a predetermined level the inlet or feed valve will be operated to of the casing. This-plate boiler and admit water to the boiler, and when the Water level in the boiler exceeds a predetermined limit (due to thewater running back through the pipes to the boiler, especially that resulting from condensed steam)- the overflowvalve will be-opened so as to permit said excess to flow from the boiler. The inlet valve 18 and the overflow or outlet valve 19 consist of needle valves which are arranged side by side, as shown most clearly in Fig. 4. These valves are mounted for movement in separate valve supporting members 20 and 21' having threaded portions 22 which are screwed detachable end plate '16. The member 20 supporting the inlet valve is screwed into the inner wall of an inlet chamber 23 formed in a cored boss on. the outer side of-the plate into portions of the 16 while the valve supporting member 21 for the overflow valve 19 is screwed Into the These two needle valves T8 and 19 have valves and which have extend upwardly and in adjustable valve seats 25 and 26 which are arranged horizontally in line with the their outer ends on the exterior of the chamber or of the plate 16 so that they can be readily adjusted to vary the timing of the valves, 71. 6., to adapt the inlet and overflow valves to operate at diflerent water levels. These two valve seats have threaded inner portions which are screwed into the ends of the corresponding valve supporting members 20 and 21 and each valve seatpasses through a pair of stufling box glands including glands 27 for preventing leakage of water to the exterior of the float chamber.

Both valves 18 and 19 are mounted for endwise movement in flanges 28 projecting from the body portions of the valve-supporting members 20 and 21. It may be observed at this point that the position of one of the valve-supporting members is\reversedwith respect to the position of the other,- that is to say, the flanges 28 in one instance the other instance extend downwardly.

The inlet valve 18 is operated by a float 29 which is connected by a float rod.30 extending over the valve and valve-supporting member to the upper part of a swinging oke or stirrup 31 to which the rod is rigidly attached, which yoke or stirrup is pivote d at 32 to the corresponding valve-supporting member end of the overflow 20. This member 31 is connected by a pair, of straps or links 33 to an enlargement in the nature of a boss 34 at the outer end of the valve, 2'. e., at the end of the valve remote from the valve seat. It will be seen that as the float falls it has a tendency to move the inlet valve away from its seat, and as the float rises it has a tendency to move the valve toward the seat.

The'overflow valve 19 is operated by a float 35 to which is attached a float rod 36 which extends beneath the corresponding valve-supporting member 21 (see Fig. 5)v and is attached to the lower part of a yoke or stirrup 37 which is similar in all respects to the yoke or stirrup 31 but is inverted with respect thereto. This member 37 which is pivoted to the valve-supporting member 21 as in the first instance, is connected by straps or links 38 to a boss 34 at the outer valve 19. It will be seen that with this arrangement of parts as the. float 35 rises it has a tendency to open the overflow valve, and as it falls it has atendency to close the valve.

Both the valve seats have ports or pas: sageways 39 extending from the inner end outwardly and thence laterally, one passageway extending to the inlet chamber 23 and the other to the outlet or overflow cham-' ber 24.

On one side of the float chamber wall near cored opening c sition on-the float chamber, water pipe 42 is connected v(see Fig. 1). This boss or enlargement 40 is provided also with a 42 communicating with the tapped opening 41. and extending to a cored opening 13 which is in the detachable plate 16v and extends to the inlet chamber 23. Directly opposite the boss 40 to which the inlet pipe is attached or on the opposite side of thefloat chamber, there is a similar boss 44 having a tapped opening 45 for an overflow pipe and a cored opening 4,6 extending. to and registering with a jcored opening 47 which is in the detachable plate 16 and extends to the overflow or outlet chamber 24.

When the end plate 16 is fastened in p0 is free to pass from the inlet or supply plpe (which is connected to they float chamber independently of the end of the plate) through the registering cored openings 42 and 43 to the inlet chamber 23, and when the water falls to a predetermined level in the boiler the inlet valve 18 is opened permitting the water to pass from the chamber 23 through the port or passageway in the valve seat for inlet needle valve 18 to the float chamber, and henceto the boiler. When a certain amount of-water has run into the boiler the rising of the float controlling the inlet valve will close the latter. ner the outlet or overflow chamber 24 is in communication through the registering cored openings with the overflow pipe wh before stated, will be connected in the tapped opening 45. If the water rises beyond a certain predetermined level the outlet valve is opened and the water will drain from the float chamber and from the boiler until it reaches a predetermined lower level, in

' which event the overflow valve is closed.

It will be observed, further, that by reason of the fact that the valve seatsextend endwise through the plate 16 to the exterior of the chamber, the positions of the valve seats ich, as

In a similar mancan be adjusted from timeto time without opening the chamber or inserting a tool into the, same, whenever it is necessary to adjust the timing of the valves or the high and low water levels at which the valves are operated. V K

A still filrther important advantage of this construction lies in the fact that by removing the plate 16 both valves and all the valve controlling and supporting parts are removed as a or replacement, and, this can be done without disconnecting any piping whatever since the feed and overflow pipes are connected to the body portion of the float chamber and not to the end plate.

unit for repairs, cleaning I have shown only the preferred constructi-on wherein there are two valves, one for controlling the feed water and the other for are such that means for carrying away the overflow or excesswater is not required or desired.

I do not desire to be confined to the exact details shown, but aim in. my claims to cover all modifications which do not involve a departure from the spirit and scope of my invention. y

Having thus described my invention, what I claim is 1. In a feed water control for boilers, a float chamber including a removable plate, a float in the chamber, a valve supporting memberrcarried by. said plate, a valve-supported for endwise movement by said memher, a valve seat carried byfsaid plate and extending through the same to the exterior thereof whereby the seat may be adjusted relative to the-valve, means operatively connecting the float to the valve so that the valve will be opened when the water reaches a predetermined low level i-n-the chamber and will be closed when the water reaches a predetermined high level therein, and means separate from the outer end of the valve seat for supplying-water to the chamher through the valve.

2. In a feed water control for boilers, a float chamber, a float therein, a valve supporting member carried by 'the chambena valve supported by said member, a valve seat for said valve extending to the exterior of said chamber whereby the seat may be adjusted relative to the valve, means operatively connecting the float to the valve so that the valve will be opened when the water reaches a predetermined low level and will be closed when the water reaches a predetermined high level in the chamber, said chamber comprising a body portion and a removabh plate, the latter supporting said valve supporting member, the valve, the valve seat and the float, said valve seat having an openingfor the passage of water, and passageways ,for supplying water to said opening and comprising a passageway in the plate and a passageway in the body portion of the chamber registering with said passageway in the plate.

3L In a feed water control forboilers, a

float chamber, a valve supporting member mission to and supported by the chamber, a needle valve supported for endwise movement by said member, a valve seat for said valve extending to the exterior of the chamber whereby it may be adjusted relative to the valve, means connecting the float to the needle valve so that the valve will be openedwhcnthe water in the chamber reaches a predetermined low level the water reaches a predetermined high level, the chamber comprising a bod v portion and a removable plate carrying the valve supporting member, the valve. the seat and the float and )assa ewavs extendin throu h portions of said plate and of said bodv por tion of the chamber for supplying water through the valve to the chamber.

4. In a feed-water control for boilers. a float chamber,comprising a bodv portion and a detachable plate secured thereto, an inlet valve and-valve seat, an outlet valve and valve seat, said valves being arranged sideby side, a pair of floats for controlling said valves, said valves, valve seats and floats being carried by said detachable plate.

5. In a feed water control for -boilers. a float. chamber, comprising 'a body portion and a detachable plate secured thereto, an inlet valve and valve seat, an outlet valve and valve seat, said valves being. arranged side by side, a pair of floats for controlling said valves, said valves, valve seats and floats being carried bvsaid detachable plate, said body portion of the casing having and will be closed when means for attachment thereto of a feed water pipe and-an overflow pipe.

6. In a'xgfeed water control for boilers, a float chamber comprising a bodyportion and removable'plate, an inlet valve, a float for operating the same, a valve seat, an inlet chamber, said valve, valve seat, float and inlet chamber being carried by the plate and removable as a unit therewith, the valve seat having a passageway for permitting passage of water from said inlet chamber to the float chamber. said body portion hav ing means for forming a connection with a feed pipe and passageway extending from said. means to said inlet chamber of the plate.

7. Ina 'feed water control for boilers, a float chamber comprising a body portion and a removable plate attached thereto, two valves for controlling respectively the adchamber,-a pair of floats in'the chamber each operatively connected to one of the valves, said removable plate carrying the valves and the floats and being removable therewith as a unit from the body portion of the chamber.

8. In a feed water control for boilers, a float chamber comprising a body portion and a detachable plate secured thereto, the

exhaust of water from the bodx portion having pipe connections for a between said float chamber and the inlet and feed water pipe and an overflow pipe, and overflow chambers of the plate, said valves 10 the plate having inlet and overflow chambers and. floats being carried by said plate and bemnnmunicating respectively with said feed ing removable there-with as a unit from the & Water and overflow pipe Connections, tWo body portion of the float chamber.

'valves and twofloats in the chamber, the In testimony whereof, I-hereunto aflix my floats being operatively connected to the signature. alves so as to control the passage of water OTT FOX. 

